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If you’re looking for details on the history of pot prohibition in the U.S., we’d recommend perusing our list of the best Bud Non-Fiction of 2012. (Read here).

For those seeking the CliffsNotes version, KQED has assembled a timeline of marijuana history in California and the U.S. It stretches from 1911, when Massachusetts prohibited the drug, to President Obama saying lawful state weed users probably should not be a priority for federal police. But there’s plenty of gaps in the record. Feel free to add more significant dates in the comments.

Read: Timeline: A History of Marijuana in California and the U.S. here, part of KQED’s Republic of Cannabis, a co-production with the Center for Investigative Reporting.

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